1) Airless 2) Breathless 3) Close 4) Dyspneal 5) Dyspneic 6) Dyspnoeal 7) Dyspnoeic 8) Fuggy 9) Not ventilated 10) Stuffy 11) Unaerated 12) Unaired 13) Unoxygenated 14) Unvented 1) Airless 2) Breathless 3) Dyspneal 4) Dyspneic 5) Dyspnoeal 6) Dyspnoeic 7) Fuggy 8) Stuffy 9) Unaerated 10) Unaired 11) Unoxygenated 12) Unvented 
[adj] - not ventilated
adjective not ventilated; `stuffy unventilated rooms`